Fruit juice extracting machine



July 18, 1950 D. A. WALLACE ET AL FRUIT JUICE EXTRACTING MACHINE 3 Sheets-Sheet 1 Filed May 18, 1946 waa Id# i f V @my @I Il IIP- 1 7 3 2 v r .l 1 x u www v l i m f IL l |-rwwmmwlwuwummmwnhwwmmv M July Filed 18, 1950 D. A. WALLACE ETAL 2,515,749

FRUIT JUICE EXTRACTING MACHINE May 18, 1946 5 Sheets-Sheet. 2

INV Tons. .Zal/LJ/Z Wd] ace,

July 1.8, 1950 D. A. WALLACE ET'AL FRUIT JUICE EXTRACTING MACHINE Filed May 18, 1946 3 Sheets-Sheet 3 Patented July 18, y 1950 BRUIT JUICE `'EXTRAC"FING MACHINE l David.A. Wallace, Grosse Pointe Farms, and'Raymond E. Hewlett, Detroit, 'Mich., assign'ors lto (Hewlett Manufacturing Company, Mich., a corporation of`Michigan Detroit,

Application Mayis, 1946.,seria1`1N,0.6io,.7sz

This invention relates to apparatus for extracting vjuices from fruits.

'It is ran object .0f this invention to provide an apparatus for this purpose that is simple in construction and adapted to seize the fruit and transport it to cutting means which severs the fruit so that it is in its most advantageous .condition for juice extraction. `The fruit segments are then crushed by forced movement through a passage of decreasing height andthe waste :elements ejected.

A `further object is to provide a device having two compartments substantially sealed Vagainst the passage of liquid therebetween. The `iirst compartment contains the fruit transporting, slicing and squeezing apparatus andthe Vsecond compartment contains `the driving mechanism for said apparatus. y l.'1ushing `out Vof the first compartment with water vfor reasons of cleanliness is thus possible.

In Athe drawings:

Figure 1 is an elevational -view of the device.

Figure 2 is a vertical section on the 1ine2s2 of Figure 1. l

Figure '3 is a vertical 'section on vthe line 3 3 of Figure 1. n y

v'Figure 4 is a vertical section lon lthe `line 4-4 of Figure 3.

A housing kI forms 'the `case within which the apparatus is retained. inlet orifice 'Il in its upper surface. A discharge orifice Vl2 is `provided-in the lower portion of one of the `side walls. A conventional spout I3 `is preferably connected to'housing I0 adjacent orifice I2. Fruit Venters the device through `orifice `and juices are discharged through spout l:|3. An open top drawer y|-4 is 4slidably mounted in the base of housing 'Hl and fis adapted to'receive the substantially solid 'waste Yelements 'such fas rind and seeds.

Housing I0 contains anv Thefhousing ||J-is divided:vertically by wall t5 into two lcompartments |6-and `1|.'l. A liquid seal between #the compartments is preferablyprovided by Awall l5. ACompartment *t6 houses themezchanical .elements which come into direct :contact awith the fruit. The orifices |i| and =|2 lead into @and out `of 4compartment -|1i andthe path of travel of the fruit is wholly :contained in compartment i6. Compartment I-Fi houses the :driving tmeans for Athemechanica'l elements of compartment |73.

'The vsource --of :power for :the operation `of the device is preferably an electric motor 1'8 'which is mounted on housing im l'with its rotor vairis in a .horizontal plane and which has vthe `rotor shaft V|9 fthereof penetrating compartment lil.

f2 Itis to be understoodhowever "that if desired a cran-k could 'be 1substituted for motor `|18 for manual operation of `the device. Other forms of power drive could also be substituted. 'C A worm 20 is keyed to rotor` .shaft |9 and adapted to mesh with a worm wheel 2| Vkeyedto a shaft 22 which is rotatably mounted L'in 'housing l0. A pair of symmetrically disposedpinions 23 and 24 arekeyed to parallel shafts 25 and 26 which are rotatably mounted in housing I0 par allel to shaft 22. Means to cause the rotation of shaft 22 to drive pinions 23 and 24 in opposite directions at similar speeds are provided. A sma11-pinion21 is keyed to shaft 22 and adapted to mesh with Vand drive pinion 23. A pinion -23 is keyed to a shaft 29 rotatably mounted in housing l0 parallel to shafts 22, 25 and 26. Pinion 28 is adapted to mesh with and drive pinion '24. Thus, for example, in Figure 3 if Apinion 124 ro tates in a counterclockwise direction its partner; pinion 23V, will be rotated in a clockwise direction; A pair of cylindrical rollers 3|) and 3| positioned in compartment I6 are also "keyed to shafts 25 and 26. The 'function to 'be performedby rollers 30 Vand 3| will be described in more detail herein. A knife |32 is Vpositioned transversely of compartment IB and is reciprocated b y means to be described yherein. The wall l5 of housing |0`has cylindrical hole 33 formed'therein on an axis par-v allel to the knife 32. The cover plate 34 has 'an extension 35 provided with a cylindrical recess 3B aligned-with hole 33. A shaft 31 is rotatably and slidably mounted in said hole and recess ('see Figure 4). A pinion 38 is keyed at '39 to shaft 31 but the keyway permits relative axial movement. Pinion 38 meshes with and is driven by pinion 28. Shaft 31 fhas a cam slot 40 formed around 'its periphery. Screw `il! secured to housing lWall l5 has a `smooth cylindrical end portion 42 adapted to ride in cam` slot 40. A link 43:15V

fastened to knife 32 and rotatably mounted on shaft 31 co-axially therewith at I4 but restrained against relative axial movement 'by slots 45 and 45 in link 43 and shaft 31 and snap ring v41. Knife =32 is slida'bly 'mounted but restrained againstrotation by means to be describedherein.' In operation when pinion 28 rotates pinion 138 shaft 31 is rotated. This rotation is not trans-` mitted to knife Y32 or link 43. Screw 4| riding in cam Vslot 40 of rotating shaft 31 induces `reciprocation of shaft 31, link -i3 and knife 32.

A pair of fingers 5|) and 5| having concave plates 52 land 53 aiiixed vto their lower surfaces is adapted to'receive an entering fruit and force Vit into :engagement with the knife l32 in a manfare keyed to shafts 25 and 26 and rotated therewith. The eccentrics have continuous inverse cam slots 60 and 6| formed in flat surfaces thereof. Connecting rods 62 and 63 are rotatably mounted on arms 56 and 51 at 64 and 65 and have on the opposite ends thereof pins 66 and 61 adapted to ride in slots 69 and 6|. The arms 62 and B3 are provided with longitudinal slots68 and 69. A pair of pins and 1| mounted on plates 12 and 13 fastened to wall l5 of housing l0 cooperate with slots 68 and 69 to form ther fulcrums about which arms 62 and 83 oscillate. In operation kthe rotation of shafts 25 and-2v6 through eccentrics 58 and 59, .camslots 60 and 5|, arms 62 and 63, arms 5G and 51 and shafts 54 and 55 cause iingers50 and 5| `to oscillate through the positions shown in broken lines in Figure 2 and back to their upper position to repeat the movement.

Referring to Figures 1 and 2 the apparatus in compartment IS which directly engages the fruit will be described. A pair of depending guide elee ments and 18 fastened to housing I8 on opposite sides of orifice guide the entering fruit 11 so that it will be received by the concave-plates 52 and 53 of fingers 50 and 5| which position the fruit for engagement by fingers 50 andv 5|. Plates 52 and 53 relinquish the fruitbysliding to the upper portion thereof as the fingers move downward. 1 Disposed transversely of the path thus assumed by the fruitlis the reciprocating knife 32 which severs it into two hemispherical segments. A spreader, generally designated bythe numeral 18 is located generally below the knife 3 2 and comprises a pair of intersecting concave sieve elements 19 which are adaptedfto separate pulp and other substantially solid matterfrom extracted juices by permitting juice to drain through openings 80 therein` The spaced lower edges of the sieves are connected by an inclined trough 8| mounted below sieves 19. Trough 8| is adapted to discharge juices from the orifice l2 provided in housing l0. The spreader` 18 is preferably formed with a slot 90 extending transversely thereof along the line of intersection of theconcave sieve elements 19'. The Iknife'32 is slidably mounted in slot 9U.

The means which cooperates with sieves 19 to extract juice from the hemispherical fruit segments is cylindrical rollers 30 and 3|. The relation between therollers and sieves vis important and the concave sieve elements 19 referred to above are supported by trough 8| `and thelower end portion of each sieve is arcuately curved beneath one of the rollers 39 and 3|., respectively. Each sieve 19 is so shaped and disposed as to form a chamber 82 of gradually decreasing width between it and the roller with which` it is mounted. The fruitsegments are lreceived from knife 32 by rollers 30 and 3| andfmoved into chamber 82 and over the face of vsieve 19. The outer periphery of rollers 30 and 3| are provided with sharp protruding elements 83 which are adapted to iirmly engage the fruit. These elements have been illustrated as longitudinal knife edges spaced circumferentially about the cylindrical rollers although it is to be understood that they could have other forms as, for example, a

4 plurality of pointed, spike-like protrusions. As the fruit segment is moved through the chamber 82 it is progressively iiattened and crushed and the rind is finally squeezed between the roller and the lower arcuate part of the adjacent sieve.

'I'he'drawervlll has been provided as a receptacle for the 'accumulation of waste,l including rinds and seeds. When the rind is finally squeezed between the roller and the lower arcuate part of the adjacent sieve it drops by gravity through passage 84 into drawer I4. Protrusions 85 on the interior surface of the walls of housing I0 are disposedv in close relation to rollers 30 and 3| so that if any fruit segments fail to drop by gravity into passage 84 due to the fact that they have been impaled on the protruding elements 83 the segments will engage protrusion 85 and be forced off elements 83 to drop into passage 34 and drawer I4. Drawer Ui may be emptied periodically.

We claim: l

l. In a device for. extracting juices from fruits the combination of means to sever. said fruity into segments, meansv to receive each fruit'se'g'vY ment from said first means and extractjuice therefrom, and a pair of elements adapted to oscillate from a first fruit receiving position toa second position in which the fruit is engaged '1 by saidseveringmeans and back to said irirst position to receive additional fruit, saidl pair of elements being so constructed and arrangedfas to present a space therebetween through which a fruit may pass when the elements are in said f: first position and to cooperate to approacheach other behind the fruit and push it towardsaid severing means as an incident to their movementy to said second position. v

2. In a devicefor extracting juices from fruits the combination of means to sever fruit into segments, means to receive each fruit'segment from said first means and extract juice therefrom, a pair of fingers rotatably mounted upon parallel axes, said fingers being normally inclined lup.- wardly and vtoward each other, and meansto rotate said fingers downward through a limited arc whereby they engage the upper surface of said fruit and as they rotate force said fruit into engagement with said severing means. 1

3. In a fruit juice extracting device they combination of a pair inverse cam elements, means to rotate said cam elements in opposite directions, fruit severing means, fruit crushing means, a pair of inclined fingers adapted to engage a fruit and force it into contact with said severing means, and means to cause rotation of said cam elements to oscillate said'ngers from a first position to a position relatively closer to said severing means.

4. In a device for extracting juices from fruit a knife adapted to cut fruit into segments, means to reciprocate said knife, means to receive each fruit segment from said knife and extract juice therefrom, a pair of fingers rotatably mount-ed upon parallel axes and adapted to oscillate between iirst and second positions, and means to oscillate said fingers, the ends of said fingers opposite said axes having considerable space therebetween in said first position wherebr a fruit may pass between said fingers in preparation for engagement by said fingers on the surface thereof farthest from said knife when said fingers are oscillated, said ends of said-fingers having relatively little space therebetween in intermediate positions and said second position being adjacent said knife so that the fruit is` forced over said knife.

5. In a device for extracting juices from fruits the combination ofconcave sieve members intersecting in a straight line, a knife slidably mounted adjacent said line, means to reciprocate said knife, a pair of cylindrical rollers rotatably mounted on their longitudinal axes, said axes being parallel to said line, each of said rollers being positioned adjacent one of said sieve members and positioned relatively distant from its associ-v ated sieve member in the Vicinity of said line and relatively close to its associated sieve member near the extremity of the associated sieve member remote from said line, means to rotate said rollers whereby fruit segments are crushed between said rollers and said sieve members, and means to deliver fruit to said knife and the segments to said rollers.

6. In a device for extracting juices from fruits the combination of concave sieve members intersecting in a straight line,` a knife slidably mounted adjacent said line, vmeans to reciprocate said knife, a pair of cylindrical rollers rotatably mounted on their longitudinal axes, said axes being parallel to said line, each of said rollers' ber remote from said line, means to rotate said rollers whereby fruit segments are crushed between said rollers and said sieve members, and means adapted to oscillate from a rst fruit receiving position to a, second position in which the fruit is severed into segments by said knife and the segments engaged by said rollers.

DAVID A. WALLACE. RAYMOND E. HEWLETT.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

